Finding the Third Proportional to 3,150.56 and 3,408.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,150.56 : 3,408.75 = 3,408.75 : x
2. Step 2: Convert to fraction form
   3,150.56/3,408.75 = 3,408.75/x
3. Step 3: Cross multiply
   3,150.56x = 3,408.75 × 3,408.75
4. Step 4: Simplify right side
   3,150.56x = 11,619,576.56
5. Step 5: Solve for x
   x = 11,619,576.56/3,150.56
6. Step 6: Final answer
   x = 3,688.10